Prepare a new contribution format income statement under each of the following conditions (consider each case independently): (Input all amounts as positive values except losses which should be indicated by a minus sign. Do not round intermediate calculations. Round your \"Per unit\" answers to 2 decimal places. Omit the \"$\" sign in your response.)

1.

The number of units sold increases by 15%.

2.

The selling price decreases by 50 cents per unit, and the number of units sold increases by 20%.

3.

The selling price increases by 50 cents per unit, fixed expenses increase by $10,000, and the number of units sold decreases by 5%.

4.

Variable expenses increase by 20 cents per unit, the selling price increases by 12%, and the number of units sold decreases by 10%.